Simulink based simulation of the behavior of a ribbon pontoon bridge

Abstract

A mathematical model of a ribbon pontoon bridge subjected to moving loads was formulated using the theory of simply supported beams. Two types of moving load models were used, the first a moving-constant-force model and the second a moving-mass model. Using both types of loads, the dynamic behavior of a ribbon pontoon bridge was simulated while subjected to a single moving load and then multiple moving loads. Modeling was done with the Simulink package in MATLAB software. Results indicated that the model is correct. The two types of moving load models made little difference to the response ranges when loads moved on the bridge, but made some difference to the response phases. When loads left, the amplitude of the dynamic responses induced by the moving-constant-force model load were larger than those induced by the moving-mass model. There was a great deal more difference when there were more loads.

Dynamic simulation of a simply supported bridge subjected by moving mass with Simulink models

“…in whichis the inverse of a matrix ( ) 14) can be compiled into an M-file, which can be treated as a type of MATLAB function for Simulink models [9,10] . Equation (15) can be set as an external input source to generate the elements corresponding to Equations ( 12) and (13) in the process of simulation analysis with the Simulink module.…”

Design Criteria for the Floating Walkways and Pontoons Considering the Extreme Climatic Conditions

“…Pontoons are widely used for different purposes, such as timber pontoons, concrete pontoons, and metal pontoons (steel and aluminum). It is a common dilemma that the theory and technique of the pontoon bridges are not taught in the universities (Zhang et al, 2010). Most structural designers do not think that they have an opportunity to tackle such situations.…”

Design Criteria for the Floating Walkways and Pontoons Considering the Extreme Climatic Conditions

“…Pontoons are widely used for different purposes such as timber pontoons, concrete pontoons, and metal pontoons (steel and aluminum). It is a common dilemma that the theory and technique of the pontoon bridges are not taught in the universities [2]. Mostly structural designers do not think that they have any opportunity to tackle such situations.…”